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The Watts 0382264 (Model 740-M1) is a high-capacity boiler pressure relief valve engineered for hot water space heating systems and low-pressure vessels
this switchover valve is compatible with standard HVAC thermostats and 24VAC coils
this kit allows you to effectively add an additional conductor to an existing 4-wire cable
Operating at 120V and a dedicated 3450 RPM
Always verify your specific burner model before installation
Resideo AM102R-UP-1 Valve 321894-708 The Watts 0382264 (Model 740-M1)The Resideo AM102R UP 1 Valve is a professional grade 1 inch Union ProPress mixing valve engineered specifically for high performance hydronic heating systems. As an R model "Heating Only" proportional thermostatic valve, it features a Teflon coated spool and body to prevent mineral buildup and scale, ensuring long term reliability in varying water conditions. This thermostatic mixing valve provides precise temperature regulation with a 70F to 180F